Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis
نویسندگان
چکیده
منابع مشابه
Hydration in solution is critical for stable oxygen isotope fractionation between carbonate ion and water
Various isotope studies require accurate fractionation factors (a’s) between different chemical compounds in thermodynamic equilibrium. Although numerous isotope systems involve aqueous solutions, the conventional theory is formulated for the gas-phase and predicts incorrect a’s for many compounds dissolved in water. Here I show that quantum-chemistry calculations, which take into account solut...
متن کاملapplication and construction of carbon paste modified electrodes developed for determination of metal ions in some real samples
ساخت الکترودهاِی اصلاح شده ِیکِی از چالشهاِی همِیشگِی در دانش شیمِی بوِیژه شیمِی تجزیه مِی باشد ،که با در نظر گرفتن سادگِی ساخت، کاربردی بودن و ارزان بودن روش مِی توان به باارزش بودن چنِین سنسورهاِی پِی برد.آنچه که در ادامه آورده شده به ساخت و کاربرد الکترودهاِی اصلاح شده با استفاده از نانو ذرات در اندازه گِیرِی ولتامترِی آهن وکادمِیم اشاره دارد. کار اول اختصاص دارد به ساخت الکترود خمِیر کربن اصلاح شده با لِیگاند داِ...
15 صفحه اولPaired positive carbonate carbon isotope, organic carbon isotope, and oxygen isotope composition study across the Lower Mississippian positive carbon isotope excursion, southeastern Nevada, USA
متن کامل
Oxygen Isotopes in Enamel Carbonate and their Ecological Significance
Stable carbon isotope analysis of fossil tooth enamel carbonate, and oxygen isotope analysis of bone or enamel phosphate, are established tools for palaeodietary and palaeoclimatic reconstruction, respectively. C/C ratios provide evidence of an animal’s diet and phosphate-based O/O values are used to establish palaeotemperature proxies. Recent studies of fossil enamel suggest that biogenic O/O ...
متن کاملApplication of Strontium Isotope Analysis of Bone and Tooth in the Study of Ancient Immigrations
One of the important questions of archaeology is the study of the mobility and immigration of human groups. A common method for addressing these issues is to refer to the artifacts and archaeological findings left behind by the earlier cultures and to compare the forms, motifs, and production methods used among various ancient cultures, and hence, to explore the relationships and cultural excha...
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ژورنال
عنوان ژورنال: Journal of Visualized Experiments
سال: 2018
ISSN: 1940-087X
DOI: 10.3791/58002